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Merger and Acquisition - Allocation of Purchase Price for Merger (Detail) - USD ($) $ in Thousands | Nov. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Calculated Fair Value of Liabilities Assumed |  |  |  |
Operating Lease Liabilities |  | $ 15,109 | $ 10,219 |
Goodwill From the Merger |  | $ 56,968 | $ 35,842 | $ 35,842
Partners Bancorp [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Total consideration | $ 135,779 |  |  |
Calculated Fair Value of Assets Acquired |  |  |  |
Premises and equipment | 3,045 |  |  |
Core deposit intangible | 25,344 |  |  |
Calculated Fair Value of Liabilities Assumed |  |  |  |
Subordinated debt | 1,179 |  |  |
Net Assets Acquired | 114,653 |  |  |
Goodwill From the Merger | 21,126 |  |  |
Partners Bancorp [Member] | Subject to Change [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Total consideration | 135,779 |  |  |
Calculated Fair Value of Assets Acquired |  |  |  |
Cash and cash equivalents | 34,586 |  |  |
Federal funds sold | 7,159 |  |  |
Securities available for sale | 123,440 |  |  |
Loans, net of ACL | 1,240,334 |  |  |
Premises and equipment | 15,504 |  |  |
Right-of-use asset | 6,042 |  |  |
Core deposit intangible | 25,344 |  |  |
Deferred taxes | 14,466 |  |  |
Investments in restricted bank stock | 6,763 |  |  |
Accrued interest receivable and other assets | 29,884 |  |  |
Total Assets Acquired | 1,503,522 |  |  |
Calculated Fair Value of Liabilities Assumed |  |  |  |
Deposits | 1,299,867 |  |  |
Long term borrowings | 55,292 |  |  |
Subordinated debt | 21,078 |  |  |
Operating Lease Liabilities | 6,908 |  |  |
Other liabilities | 5,724 |  |  |
Total Liabilities Assumed | 1,388,869 |  |  |
Net Assets Acquired | 114,653 |  |  |
Goodwill From the Merger | $ 21,126 |  |  |

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